442211242 has 16 divisors (see below), whose sum is σ = 766184832. Its totient is φ = 189181120.

The previous prime is 442211221. The next prime is 442211251. The reversal of 442211242 is 242112244.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590818 + ... + 591565.

It is an arithmetic number, because the mean of its divisors is an integer number (47886552).

Almost surely, 2^442211242 is an apocalyptic number.

442211242 is a deficient number, since it is larger than the sum of its proper divisors (323973590).

442211242 is a wasteful number, since it uses less digits than its factorization.

442211242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182413.

The product of its digits is 1024, while the sum is 22.

The square root of 442211242 is about 21028.8193201616. The cubic root of 442211242 is about 761.8624922087.

Adding to 442211242 its reverse (242112244), we get a palindrome (684323486).

The spelling of 442211242 in words is "four hundred forty-two million, two hundred eleven thousand, two hundred forty-two".